Nut-lock wrench.



No. 657,075. Patented Sept. 4, I900. W. E. BALL.

NUT LOCK WRENCH.

(Application filed Jan. 22, 1900.)

(No Iodel.)

p I l 'li 13 414i a} F L- j T/VJTNESSES: 44

n1: NORH|S FILTERS c' D c rrnn STATES PATENT OFFICE.

\VILLIAM E. BALL, OF ZANESVILLE, OHIO.

NUT-LOCK WRENCH.

SPECIFICATION forming part of Letters Patent No. 657,075, datedSeptember 4, 1900. Application filed January 22, 1900. Serial No. 2,326.(No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM E. BALL, a citizen of the United States,residing at .Zanesville, in the county of Muskingum and State of Ohio,have invented certain new and useful Improvements in Nut-Lock Wrenches;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to new and useful improvements in nut-lockwrenches, and particularly to a tool adapted for use in holding a keycarried by a nut from a locking relation while the nut is beingunscrewed from its spindle or bolt.

More particularly my invention consists in the provision of a nut-wrenchwhich has integral with one face thereof a lug having a beveled facewhich is adapted to engage underneath a spring-actuated key which iscarried by a nut and has its angled end extended through an aperture inthe nut and engaging in a recess in the thread of the spindle or bolt tonormally hold the same locked, said lug on the wrench adapted to holdthe angled end of the key out of the recess in the threaded end of thespindle and hold the same from engagement with the threads while the nutis being unscrewed.

Myinvention is clearly illustrated in the accompan yin g drawings,which, with the letters of reference marked thereon, form part of thisapplication, and in which drawings similar letters of reference indicatelike parts throughout the several views, in which- Figure 1 is aperspective View of my improved nut-lock wrench. Fig. 2 is a detail Viewshowing the manner of the application of the wrench to the key of thenut, whereby as the wrench is applied to the nut the key is withdrawnfrom its locking relation; and Fig. 3 is a sectional view through thenut, showing the manner in which the key is held to the recess in thethreaded end of the spindle and the manner in which the lug on thewrench engages said key to withdraw it.

Reference now being had to the details of the drawings by letter, Adesignates the wrench, which has an aperture A at one end adapted to fitover the squared portion of the nut D, and on one face of said wrenchadjacent to its squared aperture is a lug A, the inner face of which isflush and continuous with one of the inner faces of said squaredaperture. This lug on its outer face is beveled, as shown at a.

The nut-lock in connection with which my invention is adapted to be usedconsists of a threaded spindle E, having a recess E in its threadedportion, and the nut H, having a squared portion about which thelocking-key K, made, preferably, of spring-wire, is passed, said keyhaving one end held to the nut, while its opposite end is bent at anangle and ex tended through an aperture in the wall of the squaredportion of the nut and its inner end adapted to engage in said recess inthe thread of the spindle or bolt to normally hold the nut in a lockedrelation. A slight space intervenes between the outer wall of thesquared portion of the nut, through which the end of the key passes, andthe portion of the key adjacent to its bent end, in which space thebeveled part of the lug on the wrench is adapted to work, the beveledportion of said lug being against the inner edge of the spring wireforming the key in order to throw its locking end outward. When thesquared portion of the wrench is placed over the nut, with the lug onthe side of the nut through which the end of said key passes, the lugwill cause the end of the key to spring out of the path of the threadsof the spindle, after which the nut may be unscrewed by means of thewrench in the usual manner, the wrench holding the key from adisengaging or looking relation with the threads of the spindle, as willbe clearly understood.

While I have shown my wrench as having a squared aperture with a lug onits under face, still I do not confine myself to any shape of wrench,the essential feature being a wrench having a lug on its face which isadapted to normally engage with and release a lockingkey carried by anut and hold said key out of locking relation while the nut is beingunscrewed or screwed into place by means of the wrench.

Having thus described my invention, wha

I claim to be new, and desire to secure by Letters Patent, is-

As an improved article of manufacture, a nut-lock wrench having asquare-apertured end, an integral 111g A extending the width of the wallof said aperture, the inner face of the lug being flush with oneof theinner walls of said aperture and the outer face of the lug beingconvexed and merging at its lower end into and flush with the outer faceof the 10 wrench, as shown and for the purpose set forth.

In testimony whereof I aflix my signature in presence of two Witnesses.

WILLIAM E. BALL. Witnesses:

FRANK O. HAAS, PERRY SMITH.

